// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-switch-statement-runtime-semantics-evaluation
description: Creation of new lexical environment (into `case` clause)
info: |
    1. Let exprRef be the result of evaluating Expression.
    2. Let switchValue be ? GetValue(exprRef).
    3. Let oldEnv be the running execution context's LexicalEnvironment.
    4. Let blockEnv be NewDeclarativeEnvironment(oldEnv).
    5. Perform BlockDeclarationInstantiation(CaseBlock, blockEnv).
    6. Set the running execution context's LexicalEnvironment to blockEnv.
    7. Let R be the result of performing CaseBlockEvaluation of CaseBlock with
      argument switchValue.
    [...]
features: [let]
---*/

function Test() {
    let x = 'outside';
    var probeExpr, probeSelector, probeStmt;

    switch (probeExpr = function() { return x; }, null) {
      case probeSelector = function() { return x; }, null:
        probeStmt = function() { return x; };
        let x = 'inside';
    }

    assert.sameValue(probeExpr(), 'outside');
    assert.sameValue(
      probeSelector(), 'inside', 'reference from "selector" Expression'
    );
    assert.sameValue(probeStmt(), 'inside', 'reference from Statement position');
}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_TEST; i++) {
    Test();
}
